From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 86718CA5FF0 for ; Sun, 4 Oct 2026 18:40:53 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 4B5336B008A; Sun, 4 Oct 2026 14:40:52 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 48D086B008C; Sun, 4 Oct 2026 14:40:52 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3A3706B0092; Sun, 4 Oct 2026 14:40:52 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id F2CB56B008A for ; Sun, 4 Oct 2026 14:40:51 -0400 (EDT) Received: from smtpin30.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 61AAB120C28 for ; Sun, 4 Oct 2026 18:40:51 +0000 (UTC) X-FDA: 85285810302.30.3A63E43 Received: from gwu.lbox.cz (gwu.lbox.cz [62.245.111.132]) by imf06.hostedemail.com (Postfix) with ESMTP id 9E0F0180005 for ; Sun, 4 Oct 2026 18:40:48 +0000 (UTC) Authentication-Results: imf06.hostedemail.com; dkim=pass header.d=linuxbox.cz header.s=default header.b=v2jb7J2w; spf=pass (imf06.hostedemail.com: domain of nikola.ciprich@linuxbox.cz designates 62.245.111.132 as permitted sender) smtp.mailfrom=nikola.ciprich@linuxbox.cz; dmarc=pass (policy=none) header.from=linuxbox.cz ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1791139249; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=rllT4vqJD2NoBqkOWbpm3bVQeR7t2xedICOUbN/pD1E=; b=hJNcHVf4AbaljDKGdoKvvi6NLdp8w4NikVDKAwGo0d8w4uWEPBjlV8Dqg+NQp1K2ZDE3hb 4+S/eegXMMBVHKruv0hNFpTuRXWPYv710a/dTu8Jr8KYHqKNXUuhCLXlIQTxAYmxcnAmpP z08QG4WrP3iR1LsN0mPA6LCyKdnvWGs= ARC-Authentication-Results: i=1; imf06.hostedemail.com; dkim=pass header.d=linuxbox.cz header.s=default header.b=v2jb7J2w; spf=pass (imf06.hostedemail.com: domain of nikola.ciprich@linuxbox.cz designates 62.245.111.132 as permitted sender) smtp.mailfrom=nikola.ciprich@linuxbox.cz; dmarc=pass (policy=none) header.from=linuxbox.cz ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1791139249; b=X6xi/NMleGOwdZsoPGlV+GXeJj7n+NFaVGJlnWmcX5Jh7u3pLhZsL9wLHbU+A/sGGitDDg U7lmH5uXfuuz4nskk73W/mOO52zHAQXCtKR4MDqEEZHS9o28VP4NVhpqDb2P+xSHVSDqkr 4RAx2LkC/liTX2wGWGVFAc5t5a+xDn8= Received: from linuxbox.linuxbox.cz (linuxbox.linuxbox.cz [10.76.66.10]) by gwu.lbox.cz (Sendmail) with ESMTPS id 694IeCv24062070 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Sun, 4 Oct 2026 20:40:12 +0200 DKIM-Filter: OpenDKIM Filter v2.11.0 gwu.lbox.cz 694IeCv24062070 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxbox.cz; s=default; t=1791139213; bh=rllT4vqJD2NoBqkOWbpm3bVQeR7t2xedICOUbN/pD1E=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=v2jb7J2wuPw9seFuOTpB6Wh5FuKsdT2PhHJpMPjDu6kQ4yhxA+camUvyRz7/gBEdD 98oaxIGogrYsQrk5nXHBUajjmy9z8A1O8BUWjavxijuD2HPI0CYqNPyc4nv2V7nZkO vu9qL5hWC0Qzn7/YLwVBY2b0BNk4IBx/amzbHTgE= Received: from pcnci.linuxbox.cz (pcnci.linuxbox.cz [10.76.3.14]) by linuxbox.linuxbox.cz (Sendmail) with ESMTPS id 694IeAgE022557 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Sun, 4 Oct 2026 20:40:11 +0200 Received: from pcnci.linuxbox.cz (localhost [127.0.0.1]) by pcnci.linuxbox.cz (8.18.1/8.15.2) with ESMTPS id 694Ie5XQ2331672 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Sun, 4 Oct 2026 20:40:07 +0200 Date: Sun, 4 Oct 2026 20:40:05 +0200 From: Nikola Ciprich To: "Lorenzo Stoakes (ARM)" Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, akpm@linux-foundation.org, david@kernel.org, Mike Rapoport , Dave Hansen , Pedro Falcato , Kiryl Shutsemau , luizcap@redhat.com, pbonzini@redhat.com, Borislav Petkov , Tal Zussman , Rik van Riel , Matt Fleming , Nikola Ciprich Subject: Re: hunting memory corruption bug in 6.18.x Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Scanned-By: MIMEDefang 3.7.1 on 10.76.66.3 X-Scanned-By: MIMEDefang v3.7.1/SpamAssassin v4.000002 on lbxovapx9 (nik) X-Scanned-By: MIMEDefang 2.86 on 10.76.66.10 X-Antivirus: on lbxovapx9 by Antivirus X-Milter-Copy-Status: O X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 9E0F0180005 X-Rspam-User: X-Stat-Signature: zkg8ub3a71bop58x7gpu5itr8jby5cm4 X-HE-Tag: 1791139248-24833 X-HE-Meta: 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 VAo7CxIV vK4UM+SZEs8+wxjknPc1esBgKcZybmt8p0WSIvmoePbaL7VqGjsG2VUQ8adIxRL+hGX+p/PyJjOz48wlOtulpZanZBa48jDunIW0JmKoNWD3BFLMTKpKhy7BxEWTfyGQe4Nea9QApsRRqAEJePQEDPsaRroqeckJbQvxRjVKQuOgWQNt3pk1teUqnjx4HD7G8Bitx3JTIP2h+7nBHGAz9Zca29HVja1p099EKGfFuait7dNftbGe5wwU5gjwqQ7PpyYndl8l7Z1eFT+U711Sg33I5O8phW/UKgCh1tg9RHgjWuTzjvC7buB6jzZlx8cnPp+21Jl4kfZFRtQg= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: > > > > well, not so good news here.. I tried the reproducer on multiple > > lab machines and also on one drained production box on which we've > > experienced one crash and wasn't able to get a single hit so far. > > Here's the list of machines: > > > > hostname CPU RAM kernel microcode > > pocstdv1b EPYC 9124 384G 6.18.31lb9.01 0x0a101158 > > labtest EPYC 9274F 64G 6.18.20lb9.01 0x0a101158 > > lbxovav6d EPYC 9124 1.5TB 6.18.31lb9.01 0x0a101158 > > prfjazv1g EPYC 7343 1TB 6.18.53lb9.02 0x0a0011de > > nrbphav4a EPYC 7343 1TB 6.18.15lb9.01 0x0a0011de > > > > I'll leave it running for few hours, and report back. If I'm able to reproduce, > > I'll try recommended workarounds and report as well. > > Thanks for trying that! > > Yeah, it might have been tuned to the zen arch rather than milan so that could > be making it less effective unfortunately. I executed 100x300 rounds on each machine.. unfortunately not a single hit.. > > Thanks! The LLM has informed me that it got that wrong but it was interesting > data (...!) which suggests guest memory page tables might have somehow ended up > there. > > Could you try: > > crash> p d_hash_shift > crash> eval (0x5560450b >> D) * 8 + 0xffffb18900a00000 > D = the d_hash_shift value > crash> eval (B & 0xfffffffffffff000) > B = the hex result above > crash> vtop B > crash> rd -64 P 512 > P = the hex result of the second eval > crash> search -p -m 0xfff0000000000fff PHYS > PHYS = the PHYSICAL column from vtop > > And for the pages the physical search found: > > crash> kmem 0x1ae234000 > crash> kmem 0x24f0e2000 > crash> kmem 0x103360000 > crash> rd -p 0x1ae234000 512 I struggled with crash a bit to get computations right, so I did it in python.. hopefully I got it right... crash> rd -64 0xffffb18905f60000 512 ffffb18905f60000: 0000000000000000 0000000000000000 ................ ffffb18905f60010: 0000000000000000 0000000000000000 ................ ffffb18905f60020: 0000000000000000 0000000000000000 ................ ffffb18905f60030: 0000000000000000 0000000000000000 ................ ffffb18905f60040: 0000000000000000 0000000000000000 ................ ffffb18905f60050: 0000000000000000 0000000000000000 ................ ffffb18905f60060: 0000000000000000 0000000000000000 ................ ffffb18905f60070: 0000000000000000 0000000000000000 ................ ffffb18905f60080: 0000000000000000 0000000000000000 ................ ffffb18905f60090: 0000000000000000 0000000000000000 ................ ffffb18905f600a0: 0000000000000000 0000000000000000 ................ ffffb18905f600b0: 0000000000000000 0000000000000000 ................ ffffb18905f600c0: 0000000000000000 0000000000000000 ................ ffffb18905f600d0: 0000000000000000 0000000000000000 ................ ffffb18905f600e0: 0000000000000000 0000000000000000 ................ ffffb18905f600f0: 0000000000000000 0000000000000000 ................ ffffb18905f60100: 0000000000000000 0000000000000000 ................ ffffb18905f60110: 0000000000000000 0000000000000000 ................ ffffb18905f60120: 0000000000000000 0000000000000000 ................ ffffb18905f60130: 0000000000000000 0000000000000000 ................ ffffb18905f60140: 0000000000000000 0000000000000000 ................ ffffb18905f60150: 0000000000000000 0000000000000000 ................ ffffb18905f60160: 0000000000000000 0000000000000000 ................ ffffb18905f60170: 0000000000000000 0000000000000000 ................ ffffb18905f60180: 0000000000000000 0000000000000000 ................ ffffb18905f60190: 0000000000000000 0000000000000000 ................ ffffb18905f601a0: 0000000000000000 0000000000000000 ................ ffffb18905f601b0: 0000000000000000 0000000000000000 ................ ffffb18905f601c0: 0000000000000000 0000000000000000 ................ ffffb18905f601d0: 0000000000000000 0000000000000000 ................ ffffb18905f601e0: 0000000000000000 0000000000000000 ................ ffffb18905f601f0: 0000000000000000 0000000000000000 ................ ffffb18905f60200: 0000000000000000 0000000000000000 ................ ffffb18905f60210: 0000000000000000 0000000000000000 ................ ffffb18905f60220: 0000000000000000 0000000000000000 ................ ffffb18905f60230: 0000000000000000 0000000000000000 ................ ffffb18905f60240: 0000000000000000 0000000000000000 ................ ffffb18905f60250: 0000000000000000 0000000000000000 ................ ffffb18905f60260: 0000000000000000 0000000000000000 ................ ffffb18905f60270: 0000000000000000 0000000000000000 ................ ffffb18905f60280: 0000000000000000 0000000000000000 ................ ffffb18905f60290: 0000000000000000 0000000000000000 ................ ffffb18905f602a0: 0000000000000000 0000000000000000 ................ ffffb18905f602b0: 0000000000000000 0000000000000000 ................ ffffb18905f602c0: 0000000000000000 0000000000000000 ................ ffffb18905f602d0: 0000000000000000 0000000000000000 ................ ffffb18905f602e0: 0000000000000000 0000000000000000 ................ ffffb18905f602f0: 0000000000000000 0000000000000000 ................ ffffb18905f60300: 0000000000000000 0000000000000000 ................ ffffb18905f60310: 0000000000000000 0000000000000000 ................ ffffb18905f60320: 0000000000000000 0000000000000000 ................ ffffb18905f60330: 0000000000000000 0000000000000000 ................ ffffb18905f60340: 0000000000000000 0000000000000000 ................ ffffb18905f60350: 0000000000000000 0000000000000000 ................ ffffb18905f60360: 0000000000000000 0000000000000000 ................ ffffb18905f60370: 0000000000000000 0000000000000000 ................ ffffb18905f60380: 0000000000000000 0000000000000000 ................ ffffb18905f60390: 0000000000000000 0000000000000000 ................ ffffb18905f603a0: 0000000000000000 0000000000000000 ................ ffffb18905f603b0: 0000000000000000 0000000000000000 ................ ffffb18905f603c0: 0000000000000000 0000000000000000 ................ ffffb18905f603d0: 0000000000000000 0000000000000000 ................ ffffb18905f603e0: 0000000000000000 0000000000000000 ................ ffffb18905f603f0: 0000000000000000 0000000000000000 ................ ffffb18905f60400: 0000000000000000 0000000000000000 ................ ffffb18905f60410: 0000000000000000 0000000000000000 ................ ffffb18905f60420: 0000000000000000 0000000000000000 ................ ffffb18905f60430: 0000000000000000 0000000000000000 ................ ffffb18905f60440: 0fffffff0c930020 0000000000000000 ............... ffffb18905f60450: 0fffffff0c930020 fffff86eb0c30000 ...........n... ffffb18905f60460: 0000000000000000 0000000000000000 ................ ffffb18905f60470: 0000000000000000 0000000000000000 ................ ffffb18905f60480: 0000000000000000 0000000000000000 ................ ffffb18905f60490: 0000006700890030 fffff86eb0ca2350 0...g...P#..n... ffffb18905f604a0: 0000000000000000 0000000000000000 ................ ffffb18905f604b0: 0000000000000000 0000000000000000 ................ ffffb18905f604c0: 0000000000000000 0000000000000000 ................ ffffb18905f604d0: 0000000000000000 0000000000000000 ................ ffffb18905f604e0: 0000000000000000 0000000000000000 ................ ffffb18905f604f0: 0000000000000000 0000000000000000 ................ ffffb18905f60500: 0000000000000000 0000000000000000 ................ ffffb18905f60510: 0000000000000000 0000000000000000 ................ ffffb18905f60520: 0000000000000000 0000000000000000 ................ ffffb18905f60530: 0000000000000000 0000000000000000 ................ ffffb18905f60540: 0000000000000000 0000000000000000 ................ ffffb18905f60550: 0000000000000000 0000000000000000 ................ ffffb18905f60560: 0000000000000000 0000000000000000 ................ ffffb18905f60570: 0000000000000000 0000000000000000 ................ ffffb18905f60580: 0000000000000000 0000000000000000 ................ ffffb18905f60590: 0000000000000000 0000000000000000 ................ ffffb18905f605a0: 0000000000000000 0000000000000000 ................ ffffb18905f605b0: 0000000000000000 0000000000000000 ................ ffffb18905f605c0: 0000000000000000 0000000000000000 ................ ffffb18905f605d0: 0000000000000000 0000000000000000 ................ ffffb18905f605e0: 0000000000000000 0000000000000000 ................ ffffb18905f605f0: 0000000000000000 0000000000000000 ................ ffffb18905f60600: 0000000000000000 0000000000000000 ................ ffffb18905f60610: 0000000000000000 0000000000000000 ................ ffffb18905f60620: 0000000000000000 0000000000000000 ................ ffffb18905f60630: 0000000000000000 0000000000000000 ................ ffffb18905f60640: 0000000000000000 0000000000000000 ................ ffffb18905f60650: 0000000000000000 0000000000000000 ................ ffffb18905f60660: 0000000000000000 0000000000000000 ................ ffffb18905f60670: 0000000000000000 0000000000000000 ................ ffffb18905f60680: 0000000000000000 0000000000000000 ................ ffffb18905f60690: 0000000000000000 0000000000000000 ................ ffffb18905f606a0: 0000000000000000 0000000000000000 ................ ffffb18905f606b0: 0000000000000000 0000000000000000 ................ ffffb18905f606c0: 0000000000000000 ffff985caf209d48 ........H. .\... ffffb18905f606d0: 0000000000000000 0000000000000000 ................ ffffb18905f606e0: 0000000000000000 0000000000000000 ................ ffffb18905f606f0: 0000000000000000 0000000000000000 ................ ffffb18905f60700: 0000000000000000 0000000000000000 ................ ffffb18905f60710: 0000000000000000 0000000000000000 ................ ffffb18905f60720: 0000000000000000 0000000000000000 ................ ffffb18905f60730: 0000000000000000 0000000000000000 ................ ffffb18905f60740: 0000000000000000 0000000000000000 ................ ffffb18905f60750: 0000000000000000 0000000000000000 ................ ffffb18905f60760: 0000000000000000 0000000000000000 ................ ffffb18905f60770: 0000000000000000 0000000000000000 ................ ffffb18905f60780: 0000000000000000 0000000000000000 ................ ffffb18905f60790: 0000000000000000 0000000000000000 ................ ffffb18905f607a0: 0000000000000000 0000000000000000 ................ ffffb18905f607b0: 0000000000000000 0000000000000000 ................ ffffb18905f607c0: 0000000000000000 0000000000000000 ................ ffffb18905f607d0: 0000000000000000 0000000000000000 ................ ffffb18905f607e0: 0000000000000000 0000000000000000 ................ ffffb18905f607f0: 0000000000000000 0000000000000000 ................ ffffb18905f60800: 0000000000000000 0000000000000000 ................ ffffb18905f60810: 0000000000000000 0000000000000000 ................ ffffb18905f60820: 0000000000000000 0000000000000000 ................ ffffb18905f60830: 0000000000000000 0000000000000000 ................ ffffb18905f60840: 0000000000000000 0000000000000000 ................ ffffb18905f60850: 0000000000000000 0000000000000000 ................ ffffb18905f60860: 0000000000000000 0000000000000000 ................ ffffb18905f60870: 0000000000000000 0000000000000000 ................ ffffb18905f60880: 0000000000000000 0000000000000000 ................ ffffb18905f60890: 0000000000000000 0000000000000000 ................ ffffb18905f608a0: 0000000000000000 0000000000000000 ................ ffffb18905f608b0: 0000000000000000 0000000000000000 ................ ffffb18905f608c0: 0000000000000000 0000000000000000 ................ ffffb18905f608d0: 0000000000000000 0000000000000000 ................ ffffb18905f608e0: 0000000000000000 0000000000000000 ................ ffffb18905f608f0: 0000000000000000 0000000000000000 ................ ffffb18905f60900: 0000000000000000 0000000000000000 ................ ffffb18905f60910: 0000000000000000 0000000000000000 ................ ffffb18905f60920: 0000000000000000 0000000000000000 ................ ffffb18905f60930: 0000000000000000 0000000000000000 ................ ffffb18905f60940: 0000000000000000 0000000000000000 ................ ffffb18905f60950: 0000000000000000 0000000000000000 ................ ffffb18905f60960: 0000000000000000 0000000000000000 ................ ffffb18905f60970: 0000000000000000 0000000000000000 ................ ffffb18905f60980: 0000000000000000 0000000000000000 ................ ffffb18905f60990: 0000000000000000 0000000000000000 ................ ffffb18905f609a0: 0000000000000000 0000000000000000 ................ ffffb18905f609b0: 0000000000000000 0000000000000000 ................ ffffb18905f609c0: 0000000000000000 0000000000000000 ................ ffffb18905f609d0: 0000000000000000 0000000000000000 ................ ffffb18905f609e0: 0000000000000000 0000000000000000 ................ ffffb18905f609f0: 0000000000000000 0000000000000000 ................ ffffb18905f60a00: 0000000000000000 0000000000000000 ................ ffffb18905f60a10: 0000000000000000 0000000000000000 ................ ffffb18905f60a20: 0000000000000000 0000000000000000 ................ ffffb18905f60a30: 0000000000000000 0000000000000000 ................ ffffb18905f60a40: 0000000000000000 0000000000000000 ................ ffffb18905f60a50: 0000000000000000 0000000000000000 ................ ffffb18905f60a60: 0000000000000000 0000000000000000 ................ ffffb18905f60a70: 0000000000000000 0000000000000000 ................ ffffb18905f60a80: 0000000000000000 0000000000000000 ................ ffffb18905f60a90: 0000000000000000 0000000000000000 ................ ffffb18905f60aa0: 0000000000000000 0000000000000000 ................ ffffb18905f60ab0: 0000000000000000 0000000000000000 ................ ffffb18905f60ac0: 0000000000000000 0000000000000000 ................ ffffb18905f60ad0: 0000000000000000 0000000000000000 ................ ffffb18905f60ae0: 0000000000000000 0000000000000000 ................ ffffb18905f60af0: 0000000000000000 0000000000000000 ................ ffffb18905f60b00: 0000000000000000 0000000000000000 ................ ffffb18905f60b10: 0000000000000000 0000000000000000 ................ ffffb18905f60b20: 0000000000000000 0000000000000000 ................ ffffb18905f60b30: 0000000000000000 0000000000000000 ................ ffffb18905f60b40: 0000000000000000 0000000000000000 ................ ffffb18905f60b50: 0000000000000000 0000000000000000 ................ ffffb18905f60b60: 0000000000000000 0000000000000000 ................ ffffb18905f60b70: 0000000000000000 0000000000000000 ................ ffffb18905f60b80: 0000000000000000 0000000000000000 ................ ffffb18905f60b90: 0000000000000000 0000000000000000 ................ ffffb18905f60ba0: 0000000000000000 0000000000000000 ................ ffffb18905f60bb0: 0000000000000000 0000000000000000 ................ ffffb18905f60bc0: 0000000000000000 0000000000000000 ................ ffffb18905f60bd0: 0000000000000000 0000000000000000 ................ ffffb18905f60be0: 0000000000000000 0000000000000000 ................ ffffb18905f60bf0: 0000000000000000 0000000000000000 ................ ffffb18905f60c00: 0000000000000000 0000000000000000 ................ ffffb18905f60c10: 0000000000000000 0000000000000000 ................ ffffb18905f60c20: 0000000000000000 0000000000000000 ................ ffffb18905f60c30: 0000000000000000 0000000000000000 ................ ffffb18905f60c40: 0000000000000000 0000000000000000 ................ ffffb18905f60c50: 0000000000000000 0000000000000000 ................ ffffb18905f60c60: 0000000000000000 0000000000000000 ................ ffffb18905f60c70: 0000000000000000 0000000000000000 ................ ffffb18905f60c80: 0000000000000000 0000000000000000 ................ ffffb18905f60c90: 0000000000000000 0000000000000000 ................ ffffb18905f60ca0: 0000000000000000 0000000000000000 ................ ffffb18905f60cb0: 0000000000000000 0000000000000000 ................ ffffb18905f60cc0: 0000000000000000 0000000000000000 ................ ffffb18905f60cd0: 0000000000000000 0000000000000000 ................ ffffb18905f60ce0: 0000000000000000 0000000000000000 ................ ffffb18905f60cf0: 0000000000000000 0000000000000000 ................ ffffb18905f60d00: 0000000000000000 0000000000000000 ................ ffffb18905f60d10: 0000000000000000 0000000000000000 ................ ffffb18905f60d20: 0000000000000000 0000000000000000 ................ ffffb18905f60d30: 0000000000000000 0000000000000000 ................ ffffb18905f60d40: 0000000000000000 0000000000000000 ................ ffffb18905f60d50: 0000000000000000 0000000000000000 ................ ffffb18905f60d60: 0000000000000000 0000000000000000 ................ ffffb18905f60d70: 0000000000000000 0000000000000000 ................ ffffb18905f60d80: 0000000000000000 0000000000000000 ................ ffffb18905f60d90: 0000000000000000 0000000000000000 ................ ffffb18905f60da0: 0000000000000000 0000000000000000 ................ ffffb18905f60db0: 0000000000000000 0000000000000000 ................ ffffb18905f60dc0: 0000000000000000 0000000000000000 ................ ffffb18905f60dd0: 0000000000000000 0000000000000000 ................ ffffb18905f60de0: 0000000000000000 0000000000000000 ................ ffffb18905f60df0: 0000000000000000 0000000000000000 ................ ffffb18905f60e00: 0000000000000000 0000000000000000 ................ ffffb18905f60e10: 0000000000000000 0000000000000000 ................ ffffb18905f60e20: 0000000000000000 0000000000000000 ................ ffffb18905f60e30: 0000000000000000 0000000000000000 ................ ffffb18905f60e40: 0000000000000000 0000000000000000 ................ ffffb18905f60e50: 0000000000000000 0000000000000000 ................ ffffb18905f60e60: 0000000000000000 0000000000000000 ................ ffffb18905f60e70: 0000000000000000 0000000000000000 ................ ffffb18905f60e80: 0000000000000000 0000000000000000 ................ ffffb18905f60e90: 0000000000000000 0000000000000000 ................ ffffb18905f60ea0: 0000000000000000 0000000000000000 ................ ffffb18905f60eb0: 0000000000000000 0000000000000000 ................ ffffb18905f60ec0: 0000000000000000 0000000000000000 ................ ffffb18905f60ed0: 0000000000000000 0000000000000000 ................ ffffb18905f60ee0: 0000000000000000 0000000000000000 ................ ffffb18905f60ef0: 0000000000000000 0000000000000000 ................ ffffb18905f60f00: 0000000000000000 0000000000000000 ................ ffffb18905f60f10: 0000000000000000 0000000000000000 ................ ffffb18905f60f20: 0000000000000000 0000000000000000 ................ ffffb18905f60f30: 0000000000000000 0000000000000000 ................ ffffb18905f60f40: 0000000000000000 ffff998c79483448 ........H4Hy.... ffffb18905f60f50: 0000000000000000 0000000000000000 ................ ffffb18905f60f60: 0000000000000000 0000000000000000 ................ ffffb18905f60f70: 0000000000000000 0000000000000000 ................ ffffb18905f60f80: 0000000000000000 0000000000000000 ................ ffffb18905f60f90: 0000000000000000 0000000000000000 ................ ffffb18905f60fa0: 0000000000000000 0000000000000000 ................ ffffb18905f60fb0: 0000000000000000 0000000000000000 ................ ffffb18905f60fc0: 0000000000000000 0000000000000000 ................ ffffb18905f60fd0: 0000000000000000 0000000000000000 ................ ffffb18905f60fe0: 0000000000000000 0000000000000000 ................ ffffb18905f60ff0: 0000000000000000 0000000000000000 ................ crash> search -p -m 0xfff0000000000fff 0x103360450 1225c6d18: 103360002 3852821a8: 103360798 48d9bbddf0: 200000103360a51 100184f6d18: 103360002 10018576d18: 103360002 100193e6d18: 103360002 crash> kmem 0x1225c6d18 PAGE PHYSICAL MAPPING INDEX CNT FLAGS fffff27144897180 1225c6000 0 0 0 2ffff800000000 crash> kmem 0x3852821a8 PAGE PHYSICAL MAPPING INDEX CNT FLAGS fffff2714e14a080 385282000 0 ebbf2000 1 2ffff800000000 crash> kmem 0x48d9bbddf0 PAGE PHYSICAL MAPPING INDEX CNT FLAGS fffff2726366ef40 48d9bbd000 0 eac4a000 1 2ffff800000000 crash> kmem 0x100184f6d18 PAGE PHYSICAL MAPPING INDEX CNT FLAGS fffff27540613d80 100184f6000 0 0 0 6ffff800000000 crash> kmem 0x10018576d18 PAGE PHYSICAL MAPPING INDEX CNT FLAGS fffff27540615d80 10018576000 0 0 0 6ffff800000000 crash> kmem 0x100193e6d18 PAGE PHYSICAL MAPPING INDEX CNT FLAGS fffff2754064f980 100193e6000 0 0 0 6ffff800000000 crash> rd -p 0x103360000 512 103360000: 0000000000000000 0000000000000000 ................ 103360010: 0000000000000000 0000000000000000 ................ 103360020: 0000000000000000 0000000000000000 ................ 103360030: 0000000000000000 0000000000000000 ................ 103360040: 0000000000000000 0000000000000000 ................ 103360050: 0000000000000000 0000000000000000 ................ 103360060: 0000000000000000 0000000000000000 ................ 103360070: 0000000000000000 0000000000000000 ................ 103360080: 0000000000000000 0000000000000000 ................ 103360090: 0000000000000000 0000000000000000 ................ 1033600a0: 0000000000000000 0000000000000000 ................ 1033600b0: 0000000000000000 0000000000000000 ................ 1033600c0: 0000000000000000 0000000000000000 ................ 1033600d0: 0000000000000000 0000000000000000 ................ 1033600e0: 0000000000000000 0000000000000000 ................ 1033600f0: 0000000000000000 0000000000000000 ................ 103360100: 0000000000000000 0000000000000000 ................ 103360110: 0000000000000000 0000000000000000 ................ 103360120: 0000000000000000 0000000000000000 ................ 103360130: 0000000000000000 0000000000000000 ................ 103360140: 0000000000000000 0000000000000000 ................ 103360150: 0000000000000000 0000000000000000 ................ 103360160: 0000000000000000 0000000000000000 ................ 103360170: 0000000000000000 0000000000000000 ................ 103360180: 0000000000000000 0000000000000000 ................ 103360190: 0000000000000000 0000000000000000 ................ 1033601a0: 0000000000000000 0000000000000000 ................ 1033601b0: 0000000000000000 0000000000000000 ................ 1033601c0: 0000000000000000 0000000000000000 ................ 1033601d0: 0000000000000000 0000000000000000 ................ 1033601e0: 0000000000000000 0000000000000000 ................ 1033601f0: 0000000000000000 0000000000000000 ................ 103360200: 0000000000000000 0000000000000000 ................ 103360210: 0000000000000000 0000000000000000 ................ 103360220: 0000000000000000 0000000000000000 ................ 103360230: 0000000000000000 0000000000000000 ................ 103360240: 0000000000000000 0000000000000000 ................ 103360250: 0000000000000000 0000000000000000 ................ 103360260: 0000000000000000 0000000000000000 ................ 103360270: 0000000000000000 0000000000000000 ................ 103360280: 0000000000000000 0000000000000000 ................ 103360290: 0000000000000000 0000000000000000 ................ 1033602a0: 0000000000000000 0000000000000000 ................ 1033602b0: 0000000000000000 0000000000000000 ................ 1033602c0: 0000000000000000 0000000000000000 ................ 1033602d0: 0000000000000000 0000000000000000 ................ 1033602e0: 0000000000000000 0000000000000000 ................ 1033602f0: 0000000000000000 0000000000000000 ................ 103360300: 0000000000000000 0000000000000000 ................ 103360310: 0000000000000000 0000000000000000 ................ 103360320: 0000000000000000 0000000000000000 ................ 103360330: 0000000000000000 0000000000000000 ................ 103360340: 0000000000000000 0000000000000000 ................ 103360350: 0000000000000000 0000000000000000 ................ 103360360: 0000000000000000 0000000000000000 ................ 103360370: 0000000000000000 0000000000000000 ................ 103360380: 0000000000000000 0000000000000000 ................ 103360390: 0000000000000000 0000000000000000 ................ 1033603a0: 0000000000000000 0000000000000000 ................ 1033603b0: 0000000000000000 0000000000000000 ................ 1033603c0: 0000000000000000 0000000000000000 ................ 1033603d0: 0000000000000000 0000000000000000 ................ 1033603e0: 0000000000000000 0000000000000000 ................ 1033603f0: 0000000000000000 0000000000000000 ................ 103360400: 0000000000000000 0000000000000000 ................ 103360410: 0000000000000000 0000000000000000 ................ 103360420: 0000000000000000 0000000000000000 ................ 103360430: 0000000000000000 0000000000000000 ................ 103360440: 0fffffff0c930020 0000000000000000 ............... 103360450: 0fffffff0c930020 fffff86eb0c30000 ...........n... 103360460: 0000000000000000 0000000000000000 ................ 103360470: 0000000000000000 0000000000000000 ................ 103360480: 0000000000000000 0000000000000000 ................ 103360490: 0000006700890030 fffff86eb0ca2350 0...g...P#..n... 1033604a0: 0000000000000000 0000000000000000 ................ 1033604b0: 0000000000000000 0000000000000000 ................ 1033604c0: 0000000000000000 0000000000000000 ................ 1033604d0: 0000000000000000 0000000000000000 ................ 1033604e0: 0000000000000000 0000000000000000 ................ 1033604f0: 0000000000000000 0000000000000000 ................ 103360500: 0000000000000000 0000000000000000 ................ 103360510: 0000000000000000 0000000000000000 ................ 103360520: 0000000000000000 0000000000000000 ................ 103360530: 0000000000000000 0000000000000000 ................ 103360540: 0000000000000000 0000000000000000 ................ 103360550: 0000000000000000 0000000000000000 ................ 103360560: 0000000000000000 0000000000000000 ................ 103360570: 0000000000000000 0000000000000000 ................ 103360580: 0000000000000000 0000000000000000 ................ 103360590: 0000000000000000 0000000000000000 ................ 1033605a0: 0000000000000000 0000000000000000 ................ 1033605b0: 0000000000000000 0000000000000000 ................ 1033605c0: 0000000000000000 0000000000000000 ................ 1033605d0: 0000000000000000 0000000000000000 ................ 1033605e0: 0000000000000000 0000000000000000 ................ 1033605f0: 0000000000000000 0000000000000000 ................ 103360600: 0000000000000000 0000000000000000 ................ 103360610: 0000000000000000 0000000000000000 ................ 103360620: 0000000000000000 0000000000000000 ................ 103360630: 0000000000000000 0000000000000000 ................ 103360640: 0000000000000000 0000000000000000 ................ 103360650: 0000000000000000 0000000000000000 ................ 103360660: 0000000000000000 0000000000000000 ................ 103360670: 0000000000000000 0000000000000000 ................ 103360680: 0000000000000000 0000000000000000 ................ 103360690: 0000000000000000 0000000000000000 ................ 1033606a0: 0000000000000000 0000000000000000 ................ 1033606b0: 0000000000000000 0000000000000000 ................ 1033606c0: 0000000000000000 ffff985caf209d48 ........H. .\... 1033606d0: 0000000000000000 0000000000000000 ................ 1033606e0: 0000000000000000 0000000000000000 ................ 1033606f0: 0000000000000000 0000000000000000 ................ 103360700: 0000000000000000 0000000000000000 ................ 103360710: 0000000000000000 0000000000000000 ................ 103360720: 0000000000000000 0000000000000000 ................ 103360730: 0000000000000000 0000000000000000 ................ 103360740: 0000000000000000 0000000000000000 ................ 103360750: 0000000000000000 0000000000000000 ................ 103360760: 0000000000000000 0000000000000000 ................ 103360770: 0000000000000000 0000000000000000 ................ 103360780: 0000000000000000 0000000000000000 ................ 103360790: 0000000000000000 0000000000000000 ................ 1033607a0: 0000000000000000 0000000000000000 ................ 1033607b0: 0000000000000000 0000000000000000 ................ 1033607c0: 0000000000000000 0000000000000000 ................ 1033607d0: 0000000000000000 0000000000000000 ................ 1033607e0: 0000000000000000 0000000000000000 ................ 1033607f0: 0000000000000000 0000000000000000 ................ 103360800: 0000000000000000 0000000000000000 ................ 103360810: 0000000000000000 0000000000000000 ................ 103360820: 0000000000000000 0000000000000000 ................ 103360830: 0000000000000000 0000000000000000 ................ 103360840: 0000000000000000 0000000000000000 ................ 103360850: 0000000000000000 0000000000000000 ................ 103360860: 0000000000000000 0000000000000000 ................ 103360870: 0000000000000000 0000000000000000 ................ 103360880: 0000000000000000 0000000000000000 ................ 103360890: 0000000000000000 0000000000000000 ................ 1033608a0: 0000000000000000 0000000000000000 ................ 1033608b0: 0000000000000000 0000000000000000 ................ 1033608c0: 0000000000000000 0000000000000000 ................ 1033608d0: 0000000000000000 0000000000000000 ................ 1033608e0: 0000000000000000 0000000000000000 ................ 1033608f0: 0000000000000000 0000000000000000 ................ 103360900: 0000000000000000 0000000000000000 ................ 103360910: 0000000000000000 0000000000000000 ................ 103360920: 0000000000000000 0000000000000000 ................ 103360930: 0000000000000000 0000000000000000 ................ 103360940: 0000000000000000 0000000000000000 ................ 103360950: 0000000000000000 0000000000000000 ................ 103360960: 0000000000000000 0000000000000000 ................ 103360970: 0000000000000000 0000000000000000 ................ 103360980: 0000000000000000 0000000000000000 ................ 103360990: 0000000000000000 0000000000000000 ................ 1033609a0: 0000000000000000 0000000000000000 ................ 1033609b0: 0000000000000000 0000000000000000 ................ 1033609c0: 0000000000000000 0000000000000000 ................ 1033609d0: 0000000000000000 0000000000000000 ................ 1033609e0: 0000000000000000 0000000000000000 ................ 1033609f0: 0000000000000000 0000000000000000 ................ 103360a00: 0000000000000000 0000000000000000 ................ 103360a10: 0000000000000000 0000000000000000 ................ 103360a20: 0000000000000000 0000000000000000 ................ 103360a30: 0000000000000000 0000000000000000 ................ 103360a40: 0000000000000000 0000000000000000 ................ 103360a50: 0000000000000000 0000000000000000 ................ 103360a60: 0000000000000000 0000000000000000 ................ 103360a70: 0000000000000000 0000000000000000 ................ 103360a80: 0000000000000000 0000000000000000 ................ 103360a90: 0000000000000000 0000000000000000 ................ 103360aa0: 0000000000000000 0000000000000000 ................ 103360ab0: 0000000000000000 0000000000000000 ................ 103360ac0: 0000000000000000 0000000000000000 ................ 103360ad0: 0000000000000000 0000000000000000 ................ 103360ae0: 0000000000000000 0000000000000000 ................ 103360af0: 0000000000000000 0000000000000000 ................ 103360b00: 0000000000000000 0000000000000000 ................ 103360b10: 0000000000000000 0000000000000000 ................ 103360b20: 0000000000000000 0000000000000000 ................ 103360b30: 0000000000000000 0000000000000000 ................ 103360b40: 0000000000000000 0000000000000000 ................ 103360b50: 0000000000000000 0000000000000000 ................ 103360b60: 0000000000000000 0000000000000000 ................ 103360b70: 0000000000000000 0000000000000000 ................ 103360b80: 0000000000000000 0000000000000000 ................ 103360b90: 0000000000000000 0000000000000000 ................ 103360ba0: 0000000000000000 0000000000000000 ................ 103360bb0: 0000000000000000 0000000000000000 ................ 103360bc0: 0000000000000000 0000000000000000 ................ 103360bd0: 0000000000000000 0000000000000000 ................ 103360be0: 0000000000000000 0000000000000000 ................ 103360bf0: 0000000000000000 0000000000000000 ................ 103360c00: 0000000000000000 0000000000000000 ................ 103360c10: 0000000000000000 0000000000000000 ................ 103360c20: 0000000000000000 0000000000000000 ................ 103360c30: 0000000000000000 0000000000000000 ................ 103360c40: 0000000000000000 0000000000000000 ................ 103360c50: 0000000000000000 0000000000000000 ................ 103360c60: 0000000000000000 0000000000000000 ................ 103360c70: 0000000000000000 0000000000000000 ................ 103360c80: 0000000000000000 0000000000000000 ................ 103360c90: 0000000000000000 0000000000000000 ................ 103360ca0: 0000000000000000 0000000000000000 ................ 103360cb0: 0000000000000000 0000000000000000 ................ 103360cc0: 0000000000000000 0000000000000000 ................ 103360cd0: 0000000000000000 0000000000000000 ................ 103360ce0: 0000000000000000 0000000000000000 ................ 103360cf0: 0000000000000000 0000000000000000 ................ 103360d00: 0000000000000000 0000000000000000 ................ 103360d10: 0000000000000000 0000000000000000 ................ 103360d20: 0000000000000000 0000000000000000 ................ 103360d30: 0000000000000000 0000000000000000 ................ 103360d40: 0000000000000000 0000000000000000 ................ 103360d50: 0000000000000000 0000000000000000 ................ 103360d60: 0000000000000000 0000000000000000 ................ 103360d70: 0000000000000000 0000000000000000 ................ 103360d80: 0000000000000000 0000000000000000 ................ 103360d90: 0000000000000000 0000000000000000 ................ 103360da0: 0000000000000000 0000000000000000 ................ 103360db0: 0000000000000000 0000000000000000 ................ 103360dc0: 0000000000000000 0000000000000000 ................ 103360dd0: 0000000000000000 0000000000000000 ................ 103360de0: 0000000000000000 0000000000000000 ................ 103360df0: 0000000000000000 0000000000000000 ................ 103360e00: 0000000000000000 0000000000000000 ................ 103360e10: 0000000000000000 0000000000000000 ................ 103360e20: 0000000000000000 0000000000000000 ................ 103360e30: 0000000000000000 0000000000000000 ................ 103360e40: 0000000000000000 0000000000000000 ................ 103360e50: 0000000000000000 0000000000000000 ................ 103360e60: 0000000000000000 0000000000000000 ................ 103360e70: 0000000000000000 0000000000000000 ................ 103360e80: 0000000000000000 0000000000000000 ................ 103360e90: 0000000000000000 0000000000000000 ................ 103360ea0: 0000000000000000 0000000000000000 ................ 103360eb0: 0000000000000000 0000000000000000 ................ 103360ec0: 0000000000000000 0000000000000000 ................ 103360ed0: 0000000000000000 0000000000000000 ................ 103360ee0: 0000000000000000 0000000000000000 ................ 103360ef0: 0000000000000000 0000000000000000 ................ 103360f00: 0000000000000000 0000000000000000 ................ 103360f10: 0000000000000000 0000000000000000 ................ 103360f20: 0000000000000000 0000000000000000 ................ 103360f30: 0000000000000000 0000000000000000 ................ 103360f40: 0000000000000000 ffff998c79483448 ........H4Hy.... 103360f50: 0000000000000000 0000000000000000 ................ 103360f60: 0000000000000000 0000000000000000 ................ 103360f70: 0000000000000000 0000000000000000 ................ 103360f80: 0000000000000000 0000000000000000 ................ 103360f90: 0000000000000000 0000000000000000 ................ 103360fa0: 0000000000000000 0000000000000000 ................ 103360fb0: 0000000000000000 0000000000000000 ................ 103360fc0: 0000000000000000 0000000000000000 ................ 103360fd0: 0000000000000000 0000000000000000 ................ 103360fe0: 0000000000000000 0000000000000000 ................ 103360ff0: 0000000000000000 0000000000000000 ................ let me know what else I can provide.. I'll plan rebooting those problematic production boxes to set tlbi=ipi and also switch to kernel with the patch you've sent me cheers! nik > > Thanks! > > -- > Cheers, Lorenzo > -- Ing. Nikola CIPRICH technický ředitel +420 591 166 214 +420 777 093 799 nikola.ciprich@linuxbox.cz www.linuxbox.cz